What are iron chelates primarily used for in landscaping?

Iron chelates are primarily used in landscaping to correct yellowing of leaves, a condition known as chlorosis. This yellowing often occurs in plants that suffer from iron deficiency, which is common in high pH or alkaline soils where iron becomes less available for plant uptake. Iron chelates are soluble forms of iron that can be easily absorbed by plant roots. By applying these chelates to the soil or foliage, gardeners can quickly supply the necessary iron, helping to restore the green color of leaves and improve overall plant health.

In addition to their primary use, iron chelates provide a targeted solution that is particularly effective during the growing season when plants need access to nutrients. This addresses the specific nutrient deficiency rather than adjusting the entire soil environment, which can be less efficient or practical. The role of iron in chlorophyll synthesis is critical, and correcting this deficiency directly impacts the plant's ability to photosynthesize effectively.